Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Brentford and Chiswick]
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Chiswick Snoke Brentford Snoke
Chiswick Brentford
Sulphur Dioxide Sulphur Dioxide
-43-
Monthly Average
Sulphur Dioxide expressed as parts per 100 million (corrected to first decimal place).
Smoke expressed as milligrammes per 100 cubic metres (corrected to nearest whole number).